Champion S57C Spark Plug

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Rating
Brand	Code
3.3 / 5 Overall
Champion	S57C
3.0 / 5 Materials
Copper	Copper
Ground electrode	Center electrode
3.8 / 5 Design
Cut Back	Standard
Ground type	Center type

Specifications
Gap	Heat range
0.6mm (.024")	57
⌀14mm	1.25mm
Thread diameter	Thread pitch
17.5mm (.689")	16mm (5/8")
Reach	Hex size
Tapered	Solid
Seat	Terminal
1	Non-Projected
Ground count	Projection

Cross-reference and alternatives

How we find alternative spark plugs How we rate spark plugs

Cross-reference (2)

Alternative spark plugs found in cross-reference docs provided by manufacturers

AR472

Copper

3.3/ 5

.024"17.5mm, ⌀14x1.25HR 1

R5724-9

Copper

3.1/ 5

.020"18mm, ⌀14x1.25HR 9

Deep reference (9)

A second level of cross-reference: if A=B and B=C, then A=C

IT27

Copper-Iridium

4.3/ 5

.031"17.5mm, ⌀14x1.25HR 27

S59C

Copper

3.3/ 5

.024"17.5mm, ⌀14x1.25HR 59

S59YC

Copper

3.3/ 5

.026"17.5mm, ⌀14x1.25HR 59

AR472

Copper

3.3/ 5

.024"17.5mm, ⌀14x1.25HR 1

AR473

Copper

3.3/ 5

.024"17.5mm, ⌀14x1.25HR 2

AR92

Copper

3.3/ 5

.024"17.5mm, ⌀14x1.25HR 2

AR93

Copper

3.3/ 5

.024"17.5mm, ⌀14x1.25HR 3

R5724-9

Copper

3.1/ 5

.020"18mm, ⌀14x1.25HR 9

B9EFS

Copper

2.9/ 5

.028"18mm, ⌀14x1.25HR 9

Bigger gap (1)

0.1..0.3 mm gap increase for better performance given your ignition system can handle it

S57HX

Copper

3.3/ 5

.030"17.5mm, ⌀14x1.25HR 57